<?php

/*
 * Tomato Framework
 * 
 * Copyright 2012-2012 Luax.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @link http://www.tomatoframework.com
 * @link http://www.luaxlou.com 
 * @version $Id: Dispather.class.php 20 2012-03-17 13:25:46Z luaxcn@gmail.com $
 */

/**
 * MVC dispather
 * 
 * @package tomatoframework.mvc
 * @author Luax <luaxcn@gmail.com>
 */
class Dispather
{
    /**
     *
     * @var Router 
     */
    private $router;

    private $listeners = array();


    public function __construct($router)
    {
        $this->router  = $router;
    }


    public function registerListener(IActionListener $listener)
    {

        $this->listeners[] = $listener;
        return $this;
    }

    public function notfiyListeners($event, $params)
    {
        foreach ($this->listeners as $listener)
        {
            $listener->$event($params);
        }
    }

    /**
     *
     * @param ApplicationContext $context 
     */
    public function dispath()
    {

        $controllerName = $this->router->controllerName;
        $methoName = $this->router->actionName;

        $controller = __load_controller($controllerName);
 
        
        if (method_exists($controller, 'setApplicationContext'))
        {
            $controller->setApplicationContext($this->context);
        }
        try
        {
            $this->notfiyListeners(IActionListener::EVENT_BEFORE,$controller);
            $result = $controller->$methoName();
            $this->notfiyListeners(IActionListener::EVENT_AFTER, $result);
        } catch (Exception $e)
        {
            $this->notfiyListeners(IActionListener::EVENT_EXCEPTION, $e);
        }
    }

}

?>